Resistance of Winter Wheats to Cephalosporium Stripe in the Field. G. W. Bruehl, Professor Emeritus, Department of Plant Pathology, Washington State University, Pullman 99164-6430. T. D. Murray, Assistant Professor, Department of Plant Pathology, and R. E. Allan, Geneticist, USDA, Department of Agronomy, Washington State University, Pullman 99164-6430. Plant Dis. 70:314-316. Accepted for publication 3 September 1985. Copyright 1986 The American Phytopathological Society. DOI: 10.1094/PD-70-314.

Very susceptible wheats (Triticum aestivum) were consistently susceptible but wheats with some resistance to Cephalosporium stripe (Cephalosporium gramineum) varied widely in disease reaction from season to season. In a highly susceptible wheat in a year favorable to the disease, as little as 430 kg/ha of infested straw produced maximum disease and an increase in disease was recorded with as little as 13–54 kg/ha of infested straw. Moderate resistance over a period of years is useful, especially when combined with rotation.